RT Journal Article
SR Electronic
A1 Zmindak, Milan
A1 Novak, Pavol
A1 Bishay, Peter
T1 Finite Element Modeling Piezoelectric Materials under Thermal Loads with Application for Quantum Dots
JF Communications - Scientific Letters of the University of Zilina
YR 2017
VO 19
IS 11
SP 87
OP 93
DO 10.26552/com.C.2017.2A.87-93
UL https://komunikacie.uniza.sk/artkey/csl-201711-0014.php
AB Significant research has been done in the analysis of properties of quantum dots over the previous decade. A 3D finite element model is developed to analyze quantum dots (QD) under static thermal loads. The lattice mismatch between the quantum dot and the piezoelectric matrix is created by different thermal properties of materials at enhanced temperature of this electronic structure. The fully coupled thermo-piezoelectricity is applied to the analysis of the problem. Commercial FEM software ANSYS was used for analysis. Finite element numerical results are given for the dot with a cubic shape. Numerical results for the InAs/GaAs QD nanostructure show that the elastic and electric fields are strongly influenced by the differences between the material properties of the piezoelectric QD and matrix.